Cause
A non-current control file is currently mounted.
A non-current control file is currently mounted.
Perform necessary actions to make the control file current and retry.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/nidus.htm
https://community.oracle.com/message/4070342
https://community.oracle.com/message/9168957
https://community.oracle.com/message/9827951
https://community.oracle.com/message/2176230
https://community.oracle.com/message/9342910
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